Una maquina coloca la tapa a 260 botes en 25 minutos. ¿Cuantos botes tapara en 2 horas y media?
A machine places the top 260 boats in 25 minutes. Do many boats plugged in 2 and ahalf hours?
2 and 1 half hour = 60+60+30 = 150 minutes
260/25*150 =
$${\frac{{\mathtt{260}}}{{\mathtt{25}}}}{\mathtt{\,\times\,}}{\mathtt{150}} = {\mathtt{1\,560}}$$